Capture efficiency of four chamber designs for measuring ammonia emissions

Abstract Ammonia (NH3) emissions are an economically and environmentally significant loss pathway of fertilizer and soil‐derived N. Chambers are a commonly used method to quantify NH3 emissions in plot‐scale agricultural research. Although this method is widely used, its accuracy may be influenced b...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jonathan R. Alexander, Jared A. Spackman, Melissa L. Wilson, Fabián G. Fernández, Rodney T. Venterea
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Agriculture S Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/0e65c73f52af458db41c8cbf43911023
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:0e65c73f52af458db41c8cbf43911023
record_format	dspace
spelling	oai:doaj.org-article:0e65c73f52af458db41c8cbf439110232021-11-24T11:36:04ZCapture efficiency of four chamber designs for measuring ammonia emissions2639-669610.1002/agg2.20199https://doaj.org/article/0e65c73f52af458db41c8cbf439110232021-01-01T00:00:00Zhttps://doi.org/10.1002/agg2.20199https://doaj.org/toc/2639-6696Abstract Ammonia (NH3) emissions are an economically and environmentally significant loss pathway of fertilizer and soil‐derived N. Chambers are a commonly used method to quantify NH3 emissions in plot‐scale agricultural research. Although this method is widely used, its accuracy may be influenced by the overall design of the chamber, its components, and its interaction with the environment. Four NH3 chamber designs, including open, open + polytetrafluoroethylene (PTFE), semi‐open, and closed, were deployed over a dilute NH3 solution for 6 h on four dates to determine the effect of chamber design on NH3 capture efficiency. The solution volume and concentration were measured before and after acid trap deployment, and total volatile NH3 emission was assumed to be equal to the mass N loss. The NH3 capture efficiency relative to the estimated total emissions was greatest for the open design (12.9%), whereas the semi‐open chamber was the least efficient (3.5%). The closed chamber reduced NH3 emissions relative to the open and semi‐open designs by inhibiting convective gas transport beneath the chamber footprint.Jonathan R. AlexanderJared A. SpackmanMelissa L. WilsonFabián G. FernándezRodney T. VentereaWileyarticleAgricultureSEnvironmental sciencesGE1-350ENAgrosystems, Geosciences & Environment, Vol 4, Iss 3, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Agriculture S Environmental sciences GE1-350
spellingShingle	Agriculture S Environmental sciences GE1-350 Jonathan R. Alexander Jared A. Spackman Melissa L. Wilson Fabián G. Fernández Rodney T. Venterea Capture efficiency of four chamber designs for measuring ammonia emissions
description	Abstract Ammonia (NH3) emissions are an economically and environmentally significant loss pathway of fertilizer and soil‐derived N. Chambers are a commonly used method to quantify NH3 emissions in plot‐scale agricultural research. Although this method is widely used, its accuracy may be influenced by the overall design of the chamber, its components, and its interaction with the environment. Four NH3 chamber designs, including open, open + polytetrafluoroethylene (PTFE), semi‐open, and closed, were deployed over a dilute NH3 solution for 6 h on four dates to determine the effect of chamber design on NH3 capture efficiency. The solution volume and concentration were measured before and after acid trap deployment, and total volatile NH3 emission was assumed to be equal to the mass N loss. The NH3 capture efficiency relative to the estimated total emissions was greatest for the open design (12.9%), whereas the semi‐open chamber was the least efficient (3.5%). The closed chamber reduced NH3 emissions relative to the open and semi‐open designs by inhibiting convective gas transport beneath the chamber footprint.
format	article
author	Jonathan R. Alexander Jared A. Spackman Melissa L. Wilson Fabián G. Fernández Rodney T. Venterea
author_facet	Jonathan R. Alexander Jared A. Spackman Melissa L. Wilson Fabián G. Fernández Rodney T. Venterea
author_sort	Jonathan R. Alexander
title	Capture efficiency of four chamber designs for measuring ammonia emissions
title_short	Capture efficiency of four chamber designs for measuring ammonia emissions
title_full	Capture efficiency of four chamber designs for measuring ammonia emissions
title_fullStr	Capture efficiency of four chamber designs for measuring ammonia emissions
title_full_unstemmed	Capture efficiency of four chamber designs for measuring ammonia emissions
title_sort	capture efficiency of four chamber designs for measuring ammonia emissions
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/0e65c73f52af458db41c8cbf43911023
work_keys_str_mv	AT jonathanralexander captureefficiencyoffourchamberdesignsformeasuringammoniaemissions AT jaredaspackman captureefficiencyoffourchamberdesignsformeasuringammoniaemissions AT melissalwilson captureefficiencyoffourchamberdesignsformeasuringammoniaemissions AT fabiangfernandez captureefficiencyoffourchamberdesignsformeasuringammoniaemissions AT rodneytventerea captureefficiencyoffourchamberdesignsformeasuringammoniaemissions
_version_	1718415031202217984

Capture efficiency of four chamber designs for measuring ammonia emissions

Ejemplares similares